246420840666 has 64 divisors (see below), whose sum is σ = 661717518336. Its totient is φ = 59081918400.

The previous prime is 246420840661. The next prime is 246420840691. The reversal of 246420840666 is 666048024642.

It is not an unprimeable number, because it can be changed into a prime (246420840661) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20508550 + ... + 20520561.

It is an arithmetic number, because the mean of its divisors is an integer number (10339336224).

Almost surely, 2^246420840666 is an apocalyptic number.

246420840666 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

246420840666 is an abundant number, since it is smaller than the sum of its proper divisors (415296677670).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

246420840666 is a wasteful number, since it uses less digits than its factorization.

246420840666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41029147.

The product of its (nonzero) digits is 2654208, while the sum is 48.

The spelling of 246420840666 in words is "two hundred forty-six billion, four hundred twenty million, eight hundred forty thousand, six hundred sixty-six".